A5062299294- Effects of Environmental Stressors on Livestock
- Genetic and phenotypic traits in livestock
- Genetic Mapping and Diversity in Plants and Animals
- Reproductive Physiology in Livestock
- Veterinary Equine Medical Research
- Sperm and Testicular Function
- Animal Behavior and Welfare Studies
- Radiomics and Machine Learning in Medical Imaging
- Ovarian cancer diagnosis and treatment
- Bee Products Chemical Analysis
- Endometrial and Cervical Cancer Treatments
- Animal Diversity and Health Studies
- Colorectal Cancer Screening and Detection
- Medical Imaging and Pathology Studies
- Livestock Management and Performance Improvement
- MRI in cancer diagnosis
- Intraperitoneal and Appendiceal Malignancies
- Sexual Differentiation and Disorders
- Legal Systems and Judicial Processes
- Reproductive Health and Technologies
Universidade Norte do Paraná
2017-2021
The objectives of this study were to determinate the scrotal shape and evaluate skin thickness vascular hemodynamics using Doppler ultrasonography in Braford bulls. This experiment was performed at a farm located municipality Santana do Livramento, Rio Grande Sul state, Brazil. A total 106 bulls, 16 months old, housed under extensive breeding conditions. mean temperature on day measurements taken 22.6 ± 2.9 °C, relative humidity 78 9%. These values used calculate Temperature Humidity Index...
This study was intended to estimate the genetic associations between growth traits and visual scores with possible changes in mature weight (MW) 397,900 Nellore animals. A bi-character analysis performed (co)variances parameters for MW, which comprises following traits: conformation, finishing precocity, musculature at weaning (WC, WP, WM) yearling (YC, YP, YM), birth (BW), from (WG), (YG), final index (FIND). The observed mean MW 417.6±56.2 kg, direct effect estimated heritability (h2a1) of...
ABSTRACT: Mature weight (MW) of cows is related to the costs their production. Usually, with moderate MW are more efficient in challenging environments, such as those available production systems Brazil. In present study, selection index comprises following traits: conformation, finishing precocity, musculature at weaning (WC, WP, WM) yearling (YC, YP and YM), scrotal circumference (SC), days gain 160kg from birth (D160) 240kg after (D240). This (WG) (YG). The mature (BW) traits were not...
The evaluation of testicular hemodynamics can contribute significantly to understanding the thermoregulatory mechanisms and supply oxygen in testis domestic animals. aim this study was evaluate used Color Doppler ultrasonography bulls Aberdeen Angus Polled Hereford breeds at four different moments (C1, C2, C3 C4) during seasonal variations bovine breeding Twenty-eight (Polled n = 12 16) were evaluated by means velocimetry (MV), pulsatility index (PI) resistance (RI) using ultrasonography....
The aim of this study was to evaluate the dynamics scrotal temperature, sperm quality and testicular blood flow by using infrared thermography Doppler ultrasonography in bulls submitted insulation. Braford (n = 8) at 18 months age, were assigned into following groups: insulated for 72 h (G 72; n 2), 96 96, 120 120, control animals (CON; 2) that remained without Infrared parameters measured four different time points: immediately after insulation (M0), within 10 min (M10), 30 (M30) 60 (M60)...
The aim of this study was to compare the biometric testicular characteristics, skin thickness and haemodynamics artery 12- 24-month-old bulls using Doppler ultrasonography, conducted 48 indicus-taurus animals. scrotal circumference (SC) biometry characteristics were measured calculate volume. ultrasonography used obtain haemodynamic values artery. volume lower (p<.01) in younger (12 months:4.68 ± 0.68 mm; 168.76 47.96 cm3 ) versus 24 months (5.05 0.89; 499.73 129.24 animals (p<.01). During...
Abstract Objective To prospectively validate the performance of Risk Malignancy Index (RMI), International Ovarian Tumor Analysis (IOTA) Simple Rules Model (SRRisk), IOTA Assessment Different NEoplasias in adneXa (ADNEX) and two-step strategy different types ultrasound centers Italy. Methods This is a multicenter prospective observational study including regional referral district hospitals Consecutive patients with an adnexal mass examined by certified examiner levels experience were...
Evaluation of the testicular hemodynamics can significantly contribute to understand thermoregulatory mechanisms and oxygen supply testis in domestic animals. The objective this study was evaluate circulatory dynamics arteries bulls during four consecutive seasons. We evaluated (Hereford n = 24 Angus 29) by means velocimetry parameters (Vel), pulsatility index (PI) resistance (RI) using Doppler ultrasonography. All procedures were approved Ethical Committee for Care Use Experimental Animals...
O objetivo deste estudo foi estimar a correlação entre o perímetro scrotal (PE) e idade de touros Aberdeen Angus. Os dados relativos aos PE 248 foram obtidos partir um banco exames andrológicos pertencentes Embryo Inc., Turlock, Califórnia, Estados Unidos da América, realizados 2006 2011. criados em sistema semi-intensivo na região do vale São Joaquim. A média 15,4 (± 1,5) meses médio 36,8 (±2,9) cm. Para análise estatística utilizada linear Pearson com nível mínimo significância. positiva...
Background: The mechanisms of testicular thermoregulation may influence the blood flow provided by artery, where proper supply to testicle is crucial for promotingspermatogenesis and reproductive function in bulls. size shape testicles are determined genetic environmental effects. A better understanding relationships between anatomical characteristics scrotum can support a assessment. purpose current study was evaluate temperature different scrotal shapes using infrared thermography...